Telegraphy

Telegraphy (from Greek: τῆλε têle, "at a distance" and γράφειν gráphein, "to write") is the long-distance transmission of textual or symbolic (as opposed to verbal or audio) messages without the physical exchange of an object bearing the message. Thus semaphore is a method of telegraphy, whereas pigeon post is not.

Telegram is supported by the Russian-born entrepreneur Pavel Durov, who is now living in exile. Its client-side code is open-source software, whereas its server-side code is closed-sourced and proprietary. The service also provides APIs to independent developers.

History

Telegram was launched in 2013 by brothers Nikolai and Pavel Durov, who previously founded the Russian social network VK, but had to leave the company after it was taken over by the Russian Government. Nikolai Durov created the MTProto protocol that is the basis for the messenger, while Pavel provided financial support and infrastructure through his Digital Fortress fund.

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Doom (series)

Doom is a series of first-person shootervideo games developed by id Software. The series focuses on the exploits of an unnamed space marine operating under the auspices of Union Aerospace Corporation (UAC), who fights hordes of demons and the undead in order to survive.

Doom is considered to be one of the pioneering first-person shooter games, introducing to IBM-compatible computers features such as 3D graphics, third dimension spatiality, networked multiplayer gameplay, and support for player-created modifications with the Doom WAD format. Since the release of Doom in 1993, the series has spawned numerous sequels, expansion packs, and a film.

Since its debut, over 10 million copies of games in the Doom series have been sold.